Home / 77,813.60-107,381.36-43,821.96

Finding the Fourth Proportional to 77,813.60, 107,381.36 and 43,821.96

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Solution

The fourth proportional to 77,813.60, 107,381.36 and 43,821.96 is: 60,473.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,813.60 : 107,381.36 = 43,821.96 : x
  2. Step 2: Convert to fraction form
    77,813.60/107,381.36 = 43,821.96/x
  3. Step 3: Cross multiply
    77,813.60x = 107,381.36 × 43,821.96
  4. Step 4: Simplify right side
    77,813.60x = 4,705,661,662.67
  5. Step 5: Solve for x
    x = 4,705,661,662.67/77,813.60
  6. Step 6: Final answer
    x = 60,473.51

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.